Wait and see for rest of the world
To celebrate the 25th anniversary of the Mana series, Square Enix has released Seiken Densetsu Collection, which include the first three games of the series. The downside to this is that currently is Japan only, and although the Swtich is region-free, it would be nearly impossible for someone that’s unable to read the text to enjoy the game fully.
The collection retails for ¥5,184 (roughly $46.92 USD) and includes Final Fantasy Adventure (Game Boy), Secret of Mana (SNES), and Seiken Densetsu 3 (SNES/ Japan-Only).
There are no current announcements on the game being available outside of Japan, but hopefully it will make it stateside, to improve the first-year library of the Nintendo Switch.